Please read the questions below and verify whether they are true or False. Please provide a written statement to verify your answer.
1. A radical is in its simplified form when it has no exponents in the numerator, no radicals in the numerator and it contains no fractions.
2. For the problem below, 1 is an extraneous solution and the solution is 2 and 9.
Square root of 2x + 9 - Square root of x + 1 = 2
3. When an expression contains a radical in its denominator we need to immediately find the LCD to eliminate the radical. What is this process called?